Clayton c



(No M0de1- A C. C. ANDREWS.

SHEET METAL KNOB.

No. 423,203. Patented Mar. 11,1890.

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UNITED STATES PATENT OFFICE.

CLAYTON c. ANDREWS, or WATEREURY, CONNECTICUT, ASSIGNOR To fri-IE AMERICAN RING COMPANY, OE SAME PLACE.

SHEET-METAL KNOB.y

SPECIFICATION forming part of Letters Patent No. 423,203, dated March 11, 1890.

Application tiled November 29, 1889. Serial No. 331,966. (No model.)

To all whom it may concern:

Beit known that I, CLAYTON C. ANDREWS, a citizen of the United States, residing at Vaterbury, in the county of New I-Iaven and 5 State of Connecticut, have invented' an Improvenient in SheetMetal Knobs, of which the following is a specification.

The object of this invention is to facilitate the construction of vsheet-metal knobs and to Io render them stronger and more durable than those heretofore Constructed, and to connect the parts of the knob independently of Ithe attaching-screw.

In the drawings, Figure 1 is a section of the 15 knob complete. Fig. 2 is a section of the parts detached before they are put together.

The base A of the knob is usually conical and niore or less ornamental, and it is made with a diaphragm 2, having a central openzo ing, and the body B of the knob is also of sheet metal, having a diaphragm 3 with a central opening, and this body B of the knob is usually conical and plain, and the head E of the knob is of sheet metal and usually ornaz 5 mented, and it is provided with a backwardlyturned flange 4, by which such head is fastened to the body B as the last operation in putting the parts of the knob together.

I make use of a metal eyelet F, of a size 3o adapted to pass through the central holes in the diaphragms 2 and 3, and this eyelet F is spread and clinched to hold the diaphragms 2 and 3 firmly together and thus connect the base A and body B, and the opening through this eyelet F is of the proper size for the pas- 3 5 sage of the screw G, and this screw G is inserted into its place and preferably secured by solder applied between the head 51 of the screw and the eyelet, so that this screw is irlnly held in its position to the other parts 4o of the knob, and after this the head E is con- -neoted to the body B by turning downthe flange 4, and the knob is ready for the inishing operations such as burnishing and lacquering, and the parts of the knob are lirmly 45 connected together and are not liable to become separated during the handling operations, such as packing, transporting, selling, and using such knob.

I remark that the screw G may be adapted 5o to screw into the wood or to the reception of a nut, as usual.

I claim as Iny invention The sheemnetal knob formed of the base A and body B, having the perforated diaphragms 5 5 2 and 3 and the head E, in combination with the metal eyelet F, passing through the perforations in the diaphragm and connecting the parts together, and the Screw G, passing through the eyelet, substantially as set forth. 6o

Signed by me this 20th` day of November, 1889.

CLAYTON C. ANDREWS.

IVitnesses:

DAVID N. PLUME, F. W. CHESSON. 

